Proof Research Carbon Fiber Barrel Blank 224 Caliber 18" Sendero Light Contour 1:8" Twist

Overview

This Proof Research carbon fiber barrel blank is chambered in .224 with an 18-inch length and a 1:8-inch twist rate. It features a Sendero Light contour, a 1.20-inch shank diameter, and a 2.5-inch breech length, with a total weight of 2 lbs 9 oz. The barrel is built from double-stress relieved 416R stainless steel, which is drilled, contoured, reamed, and cut-rifled. The barrel is finished with aerospace-grade carbon fiber using a helical wrapping pattern that enhances thermal diffusivity, allowing it to cool faster and maintain accuracy during long firing sessions. This blank provides match-grade accuracy and durability and requires threading and chambering by a professional gunsmith.

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